Machine fob



B. HORISON, OF MILTON,v PENNSYLVANIA.

MACHINE FOR SPREADING ADHESIVE 0R OTHER PLASTER UPON MUSLIN, LINEN, OR vOTHER KINDS OF CLOTH.

Specification of Letters Patent No. 341, dated August 8, 1837.

To (/,ZZ 107mm it may concern Be it known that I, B. MonrsoN, of Milton,in the county of Northumberland and State of Pennsylvania, have inventeda new and useful Improvement in Machines for Spreading Adhesive oro-ther Plasters Upon Muslin, Linen, or other Suitable Kinds of Cloth.

n The nature of my invention consists in the application of a roller toa spreader, in such a manner, as that the cloth, on which the plaster ist-o be spread, may be kept at a proper dist-ance from the spreader, andat the same time, be carried by means of the roller, along the bottom ofthe spreader containing the melted plaster, in such a manner as to causethe plaster to be regularly and smoothly spread upon only one side ofthe cloth, as it is moved along the bottom of the spreader upon theroller.

To enable others, skilled in the art, to make and use my invention, Iwill proceed to describe its construction and operation.

A frame is made, say about eighteen inches square from the inside, outof metal or solid wood, having four legs so as to stand about the heightof a common table. In this frame, two rollers are placed parallel toeach other, moving truly in eyes or holes, made in two opposite sides ofthe frame, by means of a gugdeon which pro-- jects from each end of eachroller. On one end of each roller, a crank is attached to the gudgeonfor the purpose of turning the rollers. The main roller is about five orsiX inches in diameter, and should be made of cast iron or brass, andturned perfectly true and smooth, and also so as to revolve perfectlytrue upon its gudgeons or aXis. The smaller roller is about three inchesin diameter, made of wood and turned so as to revolve perfectly true.The smaller roller is placed in the frame with its lower edge on a linewith the lower edge of the larger roller, leaving between the two, aspace of about an inch in width. The gudgeons of each roller are made tofill the eyes or holes in which they revolve, so that they may runeasily and yet without any variation. On the top of the frame, at eachend of the larger roller, a metallic plate is secured so that theirupper' surfaces are on a line with the upper side of the roller.

a thumb screw works perpendicnlarly, hav- In each plateing a shoulder oneachfor the purpose ofl holding the spreader down firmly to its properplace directlyover the top of the f roller.V The spreader is made ofcast iron or brass, and `inthe form of a Ytrial'lgular trough, having anvopening along the bottom of about an half inch width and about three orfour inches shorter than the roller, andV I having projections at eachend of the trough,V through holes, in which, the thumb screws. pass insuch a manner as that the spreaderv may be screwed down npon the largerroller. rThe two lower edges of the sides-forming the trough, as alsothe bottom of each projection, are made smooth, and on a perfectly trueline, so that when screwed down upon the plates, the larger roller maybe touched thereby, along every part of the same, as the roller isturnedupon its gudgeons. The width or thickness of the edges of the spreader,at the parts which touch the surface of the roller, is about thesixteenth of an inch, or less; but, immediately from the edges, thethickness ofthe sides continues to increase at an angle of about ninetydegrees, until about half an inch thick, which is sufHcient to make thespreader retain heat and at the same time give suflicient strength toprevent the sides from bending while spreading the plaster. The smallerroller is for the purpose of-winding the cloth upon, previously tospreading the plaster thereon, and is capable of being made to runtightly or freely, by means of a cork at each end, which is Vpresseddown, or raised from the gudgeo-ns of the same, by means of a thumbscrewwhich works in the frame at each end of the rollerthe corks Vare letinto the frame from the inside, so thatthe shoulders of the rollerprevent them from falling out.

ln order to use the machine for the purpose intended, one end of thecloth is secured to the smaller roller (by means of tacks, or otherwise)and then wound tightly and smoothly thereon, (by turning toward thelarger roller g) the other end of the cloth is then passed over the topof the larger roller and around the same to the bottom thereof, so thatthe cloth may embrace about three-fourths of the surface of the largerroller. The spreader is now made sufficiently warm to keep the plasterin a semiliquid state, and then put to its place upon the largerro-ller. A small bit of paper is now put under each -end of the spreaderso as to rest upon the plates, just the thickness that the plaster clothis to be when nished, and the spreader screwed down firmly upon them.The plaster being melted to the consistency ofcommon molasses, is nowpoured intoV the trough of the spreader-one person now takes hold of theloose Vend of the cloth, and drawing toward the smaller roller so as tokeep the cloth tightand smooth against the larger roller, walksbackward, as a seoond person, by turning the larger roller, draws thecloth from the smaller, between the spreader andthe larger roller, andthus linishes. The smaller roller must be corked down suiiciently ltokeep the cloth stretched smooth, while the plaster is being spreadthereon; and the cloth should be a little wider than the length of theopening in the Vbottom of the spreader, so that a margin of the clothmay be left unspread, on each side, in order to ,prevent the plasterfromY sticking to the roller at each end.

WhatI claim as my invention, and desire to secure by Letters Patent, is-

The application of a roller to a spreader, as herein described, so thatthe muslin, linen or other cloth, on which adhesive or other plaster isto be spread, may be kept at such a distance from the spreader and atthe same time be carried by means of the roller along the bottom of thespreader (while containing the melted plaster) as to cause the plasterto be uniformly and smoothly spread upon only one side of the cloth asit is moved along across the bottom of the spreader upon the roller, orbetween the roller` and spreader, as herein described; using in theconstruction any kind of material that will be suitable to the purposeintended.

B. MORISON. v

Witnesses:

Jos. BOUND, JOHN F. WOLFINGER.

